Similar words
escalón
escalón and peldaño are close synonyms for a "step" of a staircase; peldaño is perhaps more specifically the tread of a step or rung of a ladder.
Similar in other languages
Portuguese
degrau
degrau is the Portuguese word for the same thing — both mean "step."
Portuguese
passo
passo is the Portuguese word for the same thing — both mean "step."
Practice
1 What does peldaño mean?
step
2 Fill the gap: Subió un ___.
Full sentence: Subió un peldaño. (He climbed a step.)
3 Which fingerprint chart matches peldaño?
peldaño: neutral register, academic frequency, general domain, neutral connotation.